Bucket-loading hook



' J. w. LARSON.

BUCKET LOADING HOOK- v APPLICATION FILED MAR. 9, 1921.

Patented May 30, 1922-.

6 2 sHE Is-AHEET 1.

J. W. LARSON. I BUCKET LOADING HOOK.

APPLICATIQN FILED MAR. 9. 1921.

Patented May 30, 1922 2 SHEETS-SHEET 2.

JOEY .7? 1243501]? IN VEN TOR.

A TTORNE Y.

UNITED STATES JOHN W. LARSON, 0F ESCANABA, MICHIGAN.

BUCKET-LOADING HOOK.

Application filed March 9,

To all whom it may concern."

Be it known that 1, Jean 7. LAnsoN, a citizen of the United States,residing at Escanaba, in the county of Delta and State of Michigan, haveinvented certain new and useful Improvements in Bucket-Loading Hooks, ofwhich the following is a specification, reference being had to the accompanying drawings.

This invention relates to hooks whereby a detachable engagement may behad between a hoisting or directing cable and an object to be hoisted ordirected, and particularly to a hook designed to be associated with abucket or clam shell excavator and used for unloading coal, iron ore, orother like materials from vessels and particularly designed for thepurpose of directing or drawing the bucket or clam shell to theparticularpart of the vessel where the coal is and directing the clamshell to a position where it may be hoisted through the hatchway of thevessel.

The general object of my invention is to provide a device of thischaracter so constructed that by means of a controlling cable the hookmay be shifted either into a hooking or a releasing position to engagethe body to be hauled or to release said body.

A further object is to provide a device of this character so constructedthat it may be operated by one man on deck or that it may be operatedfrom between the decks.

And a further object is to provide a device of this character which willcontrol] ably direct thehoisting bucket or clam shell. to the coal orore pile much more quickly than is possible where a bucket or clam shellis shifted by hand.

Other objects have to do with the details of construction andarrangement of parts as will appear more fully hereinafter.

My invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a side elevation of my improved hook;

Figure 2 is a front elevation thereof;

Figure 3 is a like view to Figure 1 but showing the hook in its releasedposition;

Figure 41 is a like view to Figure 1 but showing the collar 21 insection;

Figure 5 is a diagrammatic View of a vessel showing the hook about to beconnected to the elevator bucket;

Figure 6 is like view, to Figure .5 and lowered.

Specification of Letters Patent. Patehted May 30, 1922.

1921. Serial No. 450,887.

11 and at their lower ends by means of a transverse'pin 12. Attached tothe pin 11 is a cable 13. Rotatable upon the pin 11.

is a bail 141 to which a cable 15'is attached. Stops 16 are attached tothe outside faces of the bars 10, these stops being located at apredetermined distance below the pin 11.

Pivoted between the lower ends of the bars is the hook proper,designated 17, this hook being slightly curved and beveled at one end.Extending between the bars a shank 18 which, at its lower end, isbifurcated or forked and pivoted by a pin 19 to the rear end of the hook.17. This shank adjacent its upper end and upon its inner face is formedwith a laterally projecting, off-set shoulder 20.

I Sliding upon the bars 10 is a rectangular collar 21. that wall of thecollar which confronts the interior face of the shank 18 having abeveled recess 22 within which the shank 18 operates. The opposite wall"of the collar is formed with an oppositely bcv elled recess 22 withinwhich the rear edge of the shank operates when the collar is This collaris longitudinally slidable uponthe bars 10 and is supported by means ofa bail 23 which is held from slid ing movement by eyes 9/1 projectingfrom the sides of the collar, the lower ends of the bail being inwardlyturned, as at 25. The bail extends above the upper ends of the bars 10and is operatively conne ted to a cable 26; Extending between the barsand across the path of movement of the shank 18 is a pin 27 with whichthe shoulder 20 coacts. i

In the operation of this device, when the shoulder 20 of the shank 18 isagainst the pin 27, downward movement of the hook 17 is prevented and asa consequence a pull upon the cable 13 will cause the bodily movementofthe hook in its operative position. If. however, the collar 21 beraised, that is shifted away from. the hook 17 by means of the bail23and cable 26, the collar will move upward on the bars 10 and, strikingthe upperend of the shank 18, will shift this shank pin 27.

rearward so thatthe shoulder 20 will be shifted out of engagement withthe pin 2'7 and as a consequence any strain onthe hook 17 will cause thehook 17 to move into a position nearly in alignment with the bars 10,permitting anything engaged by the hookto' slip ofi'the hook, orin-other words permitting the hook to become disengaged,

from the object with which it has heretofore been engaged and which ithas been pulling. Upon the release of the collar 21, however, the collarwill shift back to its initial. position, that is the position shown inFigure 1, and the shank 18 will drop back to its initial position withthe shoulder 20 beneath the The dropping of the rear end of the book 17and of the shank is limited by a stop 28 attached to the lower ends ofthe bars 10 and extending across these bars rearward ofthe pivot pin 12.

As illustrated in Figure 5, below the deck A] of the vessel and betweenthe hatches B and Cor in any other suitable location there is disposed atransversely extending cable 29, and'the cable 13, which is a wirecable, or;- tends to this cable 29 and is provided with a ring 30through which the cable 29 passes. The cable 26, which is attached tothe bail 23, extends up loosely through one of the hatches, as forinstance the hatch (I, and is 1 engaged with the combing C of the hatchin any suit-able manner so that it will be convenient to the operator. Achain 31,-which -is from 5 to 12 long, is attached to the cable ring 30andthe hatch comb (2. The cable 15, which isv attached to the ring onthebail 14:,

. extends up through the hatch. (l to the deck,

with. the bail of the hoisting bucket.

the operator on deck controlling themovement of the clam hook in onedirection by means of this cable. By means of this cable 15 or guy line,the hook may be drawn over :80 as to operatively engage the hoistingened it will cause the upward movement of the collar 21 which, as beforeexplained, ongaging the upper end of theshank 18, will shift theshoulder 20 out engagement with the pin 27a nd permit the hook members17 to turn'to the position shown diagrammatically in Figure 6, whichwill release the hoist ing b'ucketand the lioisting bucket will now drop"downward on the coal. As soon asthe hoisting bucket has beenreleasedfrom'the hook,the hook member 17 will return to its initial position andagain be locked by the collar 21. This device is also to be operatedunder the deck on boats withcross beams, and while I have illustrated aparticular way of supporting the book so that it is automatic in itsaction, it will be obvious that the hook might be connected to cableswhereby the hook and the hoisting bucket could be drawn to any desiredposition within the vessel and then the hook released. lVhile I havedesigned this hook with particular reference to the unloading of vesselscontaining ore and coal, I do not wish to be limited to this, as it isobvious that it might be used in many other circumstances and for manyotheiypurposes, particularly where it was desired tc carry an objectsuch as a bucket from one point to another and then release the object.This can be done by providing a hoisting cable and cable to pull-thehook to any desired position and releasing the cable.

It is to be understood that in Figures 1, 2 and 3 I have shown the bail14 as extending upward as if the cable 15 were taut, but this to preventconfusion. =VVhen the cable 15 is slack, the bail 14 will hang downbehind the shank 10 of the hook. When thebail 14 hangs down on the backof the hook shank, the guy rope ring 30 will slide overto one side ofthe hook so thatthe side of the hook will tace the man on deck sothat itcan be hooked on -l:'rom:either side of the:clan1 or bucket. Preferablythe cable .26 will be so arranged that it may be made longer or shorteras is foundnecessary, and for this purpose a short lengtho'l'f chain mayhoused at the extremity of the cable 26 and adjustably connected to thehook whereby the cable 26 is engaged with the combing ofthe.

deck.

lVh-ile I have illustrated a construction which I have found to bethoroughly effective for the purpose intended, and which is .very simplein its operation, I do not wish to be limited thereto, as it is obviousthat many changes might be made 111 the details of construction andarrangement of parts' without departing from the spirit of theinvention.

1. A. device of :the character described comprising a body, a-hookmemberpivoted intermediate its ends to the lower end of the body, a shankpivoted to the rear end of said hook member and extending upward andacross the body, astop mounted on the body,

theshank being formed with a shoulder adapted to engage said stop toprevent the downward movement of the free end of the hook member, andlongitudinally shiftable means on the body adapted toengage the shankand shift it out .of engagement with the stop to thereby permitthe'ho'ok member to turn toward a position of alignment with the body.

2. A device of the character described comprising a body, a hook memberpivoted intermediate its ends to the lower end of the body, a shankpivoted to the rear end of said hook member and extending upward andacross the body, a stop mounted on the body, the shank being formed witha shoulder adapted to engage said stop to prevent the downward. movementof the free end of the hook member, and a releasing slide mounted uponthebody and adapted when pulled away from the hook member to shift theshank out of its engagement with the stop to thereby permit the hookmember to turn toward a position of alignment with the body.

8. A device of the character described comprising a body formed of twoparallel bars spaced from each other, a hook member pivoted intermediateits ends between said bars at the lower ends of the latter, a shankpivoted to the rear end of said hook member and extending upward betweensaid bars at an angle thereto and. formed with a shoulder, a stopextending between the bars and with which the shoulder is adapted toengage to prevent the downward movement of the free end of the hookmember, and a releasing slide mounted upon the bars and adapted whenpulled away from the hook member to shift the shank out of itsengagement with. the stop to thereby permit the hook member to return.toward a position of alignment with the bars. a

4-. A device of the character described comprising a body formed of twoparallel bars, a hook member disposed between the lower ends of saidbars and pivoted thereto intermediate its ends, a shank pivoted to therear end of the hook member and extending upward between said bars at anangle there to and formed with a shoulder upon its inner face, a pinextending between said bars and forming a stop with which said shoulderengages to prevent the upward movement of the shank, a cable attached tothe upper ends of said bars, a slidable collar mounted upon the bars andadapted upon an. upward movement to engage with the upper end of theshank to shift the shank out of engagement with the stop pin, and acable attached to said sliding collar whereby it may be relativelyshifted.

5. A device of the character described comprising a body formed. ofparallel bars, a pin connecting the upper ends of the bars, a pinconnecting the lower ends of the bars, a hook member through which saidpin passes intermediate the length of the hook member, a shank pivotedto the rear end of the hook member and extending upward and betweenthebars at an angle thereto, this shank being provided with an inwardlyprojecting shoulder facing toward the upper end of the shank, a stop pinextending between said bars and with which said shoulder is adapted toengage to limit the upward movement of the rear end of the hook member,said shank when its shoulder bears against the hook member extendingbeyond the bars, a rectangular collar slidingly mounted upon said bars,and a cable attached to said collar whereby upon a downward movement ofthe bars relative to the collar the collar will strike the upper end ofthe shank to shift it in ward to release the shoulder from the stop pinand permit the hook member to shift toward a position of alignment withthe bars.

6. The combination with a hoisting bucket, of means for automaticallydirecting the hoisting bucket laterally comprising a hook for engagingthe bail of the hoisting bucket, a cable supporting the book, a hookreleasing cable, and a directing cable connected to the hook whereby thehook may be drawn laterally into engagement with the hail of thehoisting bucket, said releasing cable becoming slack when the hook isinitially en-v gaged with the hoisting bucket, said supporting cableacting to draw the hook and the hoisting bucket laterally and theconsequent tightening of the releasing cable acting to release the hookwhen the bucket has been drawn laterally.

7 The combination with a hoisting bucket, of means for directing itlaterally comprising a hook formed to provide the body portion, meansfor holding said hook member at an acute angle to the body portion, aslidable releasing device on the body portion adapted to release thehook member to permit it to turn to ,a position of alignment with thebody portion, 'a directing cable attached to the upper end of the bodywhereby it may be drawn laterally, a supporting cable attached to theupper end of thebody and approximately above the point to which thehoisting bucket is to be directed, and a signature.

JOHN W. LARSON.

